as you all know channel 37 NTSC is not used for any type of broadcasting
in north america i am just wanted to know if channel 37 ATSC will be allocated for tv broadcasting

I have my doubts about it because as of right now their is no digital stations on this channel and none of the stations that are not currently broadcasting in digital are allocated this position.

Channel 37 frequencies are kept void of signals for radioastronomy.It can also be used in hospitals at less than 1 watt.

http://en.wikipedia.org/wiki/Channel_37

The Wikipedia article doesn't answer the FP's question, unfortunately. I expect that the old unwritten policy has been continued and will remain.

It isn't an unwritten polocy and it isn't limited to North America. Developed countries around the world have reserved 608 to 614 MHz (channel 37 in North America) for Radio Astronomy.

I'm going to start to transmit 10,000 watts on 610MHz and see how long it takes ET to come home :p

http://upload.wikimedia.org/wikipedia/en/2/27/ET202.jpg

As other have mentioned channel 37 is used for radio astronomy.

As for re-allocating any channels for OTA - you got it backwards. Sept 26,2006 IC announced
- cutting 2-59 to 2-51
- beginning to plan "advanced digital services" in 2-51 (except they've been planning it a while).

Industry Canada's only OTA promise is to retain a digital channel for each analog channel that existed in 1997.

We are well aware of those changes and they are discussed in other threads. :)

This thread is specifically about the past/future of channel 37.

37 is ET's channel and it's just going to stay that way. You see ET is very special and one day will visit the Earth again... and when he does we want his channel to be clear. ;)

It’s a good idea not to piss off the Extra Terrestrials… The ones you read about that come at night with the big heads and large eyes and while you’re asleep they do medical experiments on you aboard their mother ship... If they get mad they might come back and take over Rogers and ExpressVU.

They can certainly have a virtual channel 37, heh.

Good call ^... It would certainly be a unique station identifier. Channel 37, <pick number other than 37> UHF, or VHF-HI if that's what floats your boat.

I suspect they will not open the real Ch.37 up to digital use, they simply don't want terrestrial interference on that frequency. Because what if ET communicates in binary? We'd totally miss it thinking it was terrestrial.

ha! It'll never happen. Once the world throws down its iron hand on these things they never change again. This radioastronomy thing should be somewhere in the vhf band imo.. A virtual 37? Does any north American atsc broadcaster even use/considering it? probably not, it's a 'taboo' channel :D just like 555 #'s in tv shows. 37 is usable there at least.

National Research Council (NRC) provided fol comments to FCC, endorsing a change
to an early NPRM re White Space Devices (WSD, aka TV Band Devices) wherein FCC
clarified an ambiguity re use of CH37 and specifically prohibited it for TVBD/WSD:
http://sites.nationalacademies.org/bpa/BPA_048830
Scroll down and click on document dated 24 September 2004.

Note the extensive background NRC provides re why CH37 should remain free of
strong signals, cites ITU recommendation and notes CH37 has been specifically
prohibited from use by other than certain low-power medical devices since 1963.

In addition to monitoring solar flare activity, et. al., CH37 is one of only a few "quiet"
bands available to monitor red-shifted signals that originate in 1400 MHz band
w/o doppler offset. The galactic expansion rate covers a very wide range from very
small in nearby galaxies (e.g. Milky Way & Magellanic Cloud) to extremely large
(e.g. 10:1 lower frequency) in distant objects:
http://en.wikipedia.org/wiki/Red_shift
Since red-shifts vary so much, the several "quiet" bands act as rare peep-holes
into what is in actuality an entire continuum of red-shifts.

NRC also requested FCC prohibit operations of TVBD (WSD) on adjacent CH36 & 38
and also CH14, due to third harmonics falling into 1400 MHz radio astronomy band.
The FCC did not follow these recommendations. [CH14 is already a problem.....]

Fol. is excerpt from FCC-08-260A1, Second Report & Order re TVBD (WSD):
Para "155. We reaffirm our decision not to allow TVBDs to operate on channel 37 in
order to protect radio astronomy and WMTS operations. As indicated above, medical
telemetry devices used in hospitals and other healthcare facilities also operate on
other channels in the television bands on a noninterference basis under Part 15
of our rules. As discussed below, we are adopting strict out-of-band emissions
limits for TVBDs operating on channels 36 and 38. We are applying these to both
fixed and personal/portable TVBDs. Given these very strict limits, we do not
believe it is necessary to require coordination [of] fixed TVBDs with medical facilities."

from use by other than certain low-power medical devices since 1963.

Thats a part that gets spooky. Do humans resonate at channel 37 ? Why a low power medical device at that frequency at all ?

CH37 is one of only a few "quiet" bands available to monitor red-shifted signals that originate in 1400 MHz band w/o doppler offset.
Why not monitor the 1400 mhz band itself instead of selling it off ? http://74.125.47.132/search?q=cache:JgLqKP6jqdkJ:wireless.fcc.gov/auctions/69/resources/WireTransferPaymentProcess.ppt+1.4ghz+band&cd=1&hl=en&ct=clnk&gl=us

Channel 37 is sounding weirder and weirder. Moulder and Scully, where are you ?? heh.

Thats a part that gets spooky. Do humans resonate at channel 37 ? Why a low power medical device at that frequency at all ?

The 608-614 MHz band (Ch 37 in North America) along with the 1395-1400 MHz and 1429-1432 MHz bands are reserved for Wireless Medical Telemetry Service (WMTS) (http://www.fcc.gov/Bureaus/Engineering_Technology/News_Releases/2000/nret0009.html).

Why not monitor the 1400 mhz band itself instead of selling it off ? http://74.125.47.132/search?q=cache:JgLqKP6jqdkJ:wireless.fcc.gov/auctions/69/resources/WireTransferPaymentProcess.ppt+1.4ghz+band&cd=1&hl=en&ct=clnk&gl=us

That link is for certain bands above 1400 MHz, not all 1400 MHz bands.

Here's the FCC Order establishing WMTS:
http://www.fcc.gov/Bureaus/Engineering_Technology/Orders/2000/fcc00211.pdf
Since CH37 is reserved (on a nearly world wide basis) for Radio Astronomy,
that means CH37 is nearly free of outside interference, so when Grandma/pa
go into the hospital for heart surgery, they can be continuously monitored as
they saunter down the hall (BTDT) rebuilding their strength so they can go home.
CH37 was picked after numerous problems using Part15 devices on what were
presumed were "unoccupied" channels.

Problem is....THERE ARE NO WHITE SPACES in major metro areas....other than CH37.
And since the medical signals only need to go within a hospital's hallways, there
is zero impact on remotely located Radio Astronomy facilities....WIN-WIN....

==========================================
FCC's "1.4 GHz" spectrum auctions are for bands other than the internationally
protected 1400-1427 MHz (21 cm) Radio Astronomy Band:
http://wireless.fcc.gov/auctions/default.htm?job=auction_factsheet&id=69
International recommendation re Protected Radio Astronomy Bands: ITU-R RA.769-1.

Hydrogen emits a strong signal at 1420.406 MHz, which is slightly blue-shifted UP
for objects moving towards us (usually within the Milky Way) and all the rest are
red-shifted DOWN in frequency....small deviations below 1420.406 MHz for
local objects and anywhere further down in frequency (incl. 73–74.6 MHz
protected Radio Astronomy Band), depending on how far away it is (due to the
Big Bang, distant objects move away from us at ever increasing speeds).

Hydrogen emits a strong signal at 1420.406 MHz,
Ahh, thats what I was looking for, thanks.

PS: Yes, humans resonate on CH37 frequency (1/2 wavelength = 9.2-in)
on at least some part of our body (some more than others....heh).
But our head resonates at a somewhat higher freq and arms/legs/body
resonate at increasingly lower freqs....

RF radiation exposure charts include this aspect of how the human body
absorption varies with frequency....

They did a study at MIT (or CIT) a while back on the aluminum foil hats. Its seems the foil hats act as good reflectors for all the frequencies the government controls, heh.